Insider Transactions in Q3 2025 at Seagate Technology Holdings PLC (STX)
Insider Transaction List (Q3 2025)
| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Sep 16
2025
|
John Christopher Morris EVP & CTO |
SELL
Open market or private sale
|
Direct |
377
-2.77%
|
$79,547
$211.26 P/Share
|
|
Sep 14
2025
|
Ban Seng Teh EVP & Chief Commercial Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
13,869
+43.46%
|
-
|
|
Sep 14
2025
|
Kian Fatt Chong EVP Global Operations |
BUY
Exercise of conversion of derivative security
|
Direct |
2,016
+22.17%
|
-
|
|
Sep 14
2025
|
Gianluca Romano EVP & CFO |
SELL
Payment of exercise price or tax liability
|
Direct |
11,212
-16.25%
|
$2,186,340
$195.99 P/Share
|
|
Sep 14
2025
|
Gianluca Romano EVP & CFO |
BUY
Exercise of conversion of derivative security
|
Direct |
22,188
+24.33%
|
-
|
|
Sep 14
2025
|
John Christopher Morris EVP & CTO |
SELL
Payment of exercise price or tax liability
|
Direct |
3,163
-18.85%
|
$616,785
$195.99 P/Share
|
|
Sep 14
2025
|
John Christopher Morris EVP & CTO |
BUY
Exercise of conversion of derivative security
|
Direct |
6,935
+29.25%
|
-
|
|
Sep 14
2025
|
William D Mosley CEO |
SELL
Payment of exercise price or tax liability
|
Direct |
32,931
-6.11%
|
$6,421,545
$195.99 P/Share
|
|
Sep 14
2025
|
William D Mosley CEO |
BUY
Exercise of conversion of derivative security
|
Direct |
65,170
+10.79%
|
-
|
|
Sep 12
2025
|
John Christopher Morris EVP & CTO |
SELL
Open market or private sale
|
Direct |
15,347
-16.85%
|
$2,992,665
$195.93 P/Share
|
|
Sep 11
2025
|
Ban Seng Teh EVP & Chief Commercial Officer |
SELL
Open market or private sale
|
Direct |
3,732
-47.22%
|
$720,276
$193.3 P/Share
|
|
Sep 11
2025
|
Ban Seng Teh EVP & Chief Commercial Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
2,714
+8.86%
|
$149,270
$55.12 P/Share
|
|
Sep 11
2025
|
Kian Fatt Chong EVP Global Operations |
BUY
Exercise of conversion of derivative security
|
Direct |
678
+11.81%
|
-
|
|
Sep 11
2025
|
Gianluca Romano EVP & CFO |
SELL
Payment of exercise price or tax liability
|
Direct |
857
-1.8%
|
$167,972
$196.81 P/Share
|
|
Sep 11
2025
|
Gianluca Romano EVP & CFO |
BUY
Exercise of conversion of derivative security
|
Direct |
1,695
+3.43%
|
-
|
|
Sep 11
2025
|
John Christopher Morris EVP & CTO |
SELL
Payment of exercise price or tax liability
|
Direct |
430
-1.68%
|
$84,280
$196.81 P/Share
|
|
Sep 11
2025
|
John Christopher Morris EVP & CTO |
BUY
Exercise of conversion of derivative security
|
Direct |
941
+3.54%
|
-
|
|
Sep 11
2025
|
William D Mosley CEO |
SELL
Payment of exercise price or tax liability
|
Direct |
1,678
-0.35%
|
$328,888
$196.81 P/Share
|
|
Sep 11
2025
|
William D Mosley CEO |
BUY
Exercise of conversion of derivative security
|
Direct |
3,319
+0.69%
|
-
|
|
Sep 10
2025
|
Ban Seng Teh EVP & Chief Commercial Officer |
SELL
Open market or private sale
|
Direct |
6,781
-56.65%
|
$1,295,171
$191.53 P/Share
|
|
Sep 09
2025
|
Ban Seng Teh EVP & Chief Commercial Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
5,824
+12.78%
|
-
|
|
Sep 09
2025
|
Kian Fatt Chong EVP Global Operations |
BUY
Exercise of conversion of derivative security
|
Direct |
3,475
+20.99%
|
-
|
|
Sep 09
2025
|
William D Mosley CEO |
SELL
Payment of exercise price or tax liability
|
Direct |
13,158
-0.7%
|
$2,513,178
$191.59 P/Share
|
|
Sep 09
2025
|
William D Mosley CEO |
BUY
Exercise of conversion of derivative security
|
Direct |
26,034
+1.36%
|
-
|
|
Sep 09
2025
|
John Christopher Morris EVP & CTO |
SELL
Payment of exercise price or tax liability
|
Direct |
2,496
-2.54%
|
$476,736
$191.59 P/Share
|
|
Sep 09
2025
|
John Christopher Morris EVP & CTO |
BUY
Exercise of conversion of derivative security
|
Direct |
5,470
+5.18%
|
-
|
|
Sep 09
2025
|
Gianluca Romano EVP & CFO |
SELL
Payment of exercise price or tax liability
|
Direct |
6,608
-3.6%
|
$1,262,128
$191.59 P/Share
|
|
Sep 09
2025
|
Gianluca Romano EVP & CFO |
BUY
Exercise of conversion of derivative security
|
Direct |
13,072
+6.54%
|
-
|
|
Sep 02
2025
|
William D Mosley CEO |
SELL
Open market or private sale
|
Direct |
20,000
-0.71%
|
$3,340,000
$167.44 P/Share
|
|
Sep 02
2025
|
Yolanda Lee Conyers Director |
SELL
Open market or private sale
|
Direct |
750
-5.18%
|
$125,250
$167.71 P/Share
|
|
Aug 11
2025
|
Ban Seng Teh EVP & Chief Commercial Officer |
SELL
Open market or private sale
|
Direct |
1,724
-21.9%
|
$260,324
$151.61 P/Share
|
|
Aug 11
2025
|
Ban Seng Teh EVP & Chief Commercial Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
1,724
+7.24%
|
$125,852
$73.49 P/Share
|
|
Aug 06
2025
|
Jay L Geldmacher Director |
SELL
Open market or private sale
|
Direct |
2,500
-87.66%
|
$375,000
$150.5 P/Share
|
|
Aug 01
2025
|
Ban Seng Teh EVP & Chief Commercial Officer |
SELL
Open market or private sale
|
Direct |
5,905
-49.0%
|
$915,275
$155.0 P/Share
|
|
Aug 01
2025
|
William D Mosley CEO |
SELL
Open market or private sale
|
Direct |
20,000
-0.68%
|
$3,080,000
$154.15 P/Share
|
|
Aug 01
2025
|
James Ci Lee EVP & CLO |
SELL
Open market or private sale
|
Direct |
1,116
-81.28%
|
$170,748
$153.36 P/Share
|
|
Jul 31
2025
|
James Ci Lee EVP & CLO |
SELL
Open market or private sale
|
Direct |
3,509
-17.15%
|
$533,368
$152.99 P/Share
|
|
Jul 22
2025
|
James Ci Lee EVP & CLO |
SELL
Payment of exercise price or tax liability
|
Direct |
2,305
-31.62%
|
$336,530
$146.59 P/Share
|
|
Jul 22
2025
|
James Ci Lee EVP & CLO |
BUY
Exercise of conversion of derivative security
|
Direct |
6,930
+46.08%
|
-
|
|
Jul 11
2025
|
Ban Seng Teh EVP & Chief Commercial Officer |
SELL
Open market or private sale
|
Direct |
1,725
-12.52%
|
$248,400
$144.0 P/Share
|
|
Jul 11
2025
|
Ban Seng Teh EVP & Chief Commercial Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
1,725
+4.14%
|
$125,925
$73.49 P/Share
|
|
Jul 01
2025
|
William D Mosley CEO |
SELL
Open market or private sale
|
Direct |
20,000
-1.3%
|
$2,880,000
$144.32 P/Share
|